Well, the BlackBerry 10 L-Series specs sheet has officially been leaked, but not confirmed by RIM (yet!)
Have a look at these -
While both the Lisbon and Laguna are said to have a Qualcomm SnapDragon processor, the Londonwill allegedly have a TI OMAP4 processor. The London will also not have an LTE chipset, according to the slides.
Now keep in mind, these are not official by RIM, so you must keep them in mind with some salt.